US2898403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributor
Assignee: Monroe Calculating Machine Co
•
Filing: 1956-02-21
•
Granted: 1959-08-04
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Expires: 1976-02-21
Abstract
No abstract record available.
Inventors
- 👤 John F Scully
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:28
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/02; H04L13/10; H04L13/12; H04L13/14; G; G06; G06F; G06F3/00; G06F3/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |